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新概念2册基础语法3

(2007-12-15 20:39:34)
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学习公社

 第二章  名 词
Nouns
(一). 名词变复数:
1. 规则名词复数形式:
   在单数名词后加 “s”     day → days      week → weeks
2. 在以 o, s, x, ch, sh 结尾的名词后加 “es”.
   hero → heroes    box → boxes    class → classes
bush → bushes     watch → watches
3. 黄金重点:
   I. 有些以o结尾的外来词或缩略词的复数形式只加 “s”。
   II. 以元音字母加o结尾的单词只加 “s”。(不认识的单词,请你查词典,懒惰是学英语的唯一大忌。)
  piano, photo, zero, radio, bamboo, tobacco, solo, cuckoo, dynamo, cameo, soprano
教你一招 ò
    如果以o 结尾的名词有生命力,则该词汇一般加 –es.
   hero, tomato, potato, Negro(黑人)[简记:黑人英雄吃西红柿马铃薯。]
4. 以辅音加y结尾的名词变y为i再加 “es”。
   family → families      city → cities
5.  y前面是元音字母只加 “s”。
   key → keys      boy → boys      play → plays      toy → toys
6. 以f, fe结尾的名词,变f, fe为v加es.
   Calf → calves      knife → knives
ï%鸬毙牡毙模?br/> I. 下列名词直接加 “s”.(请大声朗读三遍,然后背下。注意读音!)
       roof(房顶),reef(暗礁),chief(首领),cliff(悬崖),grief(悲痛),turf(草皮),belief(信仰), gulf(港湾), dwarf(侏儒),safe(保险箱),sheriff(长官),tariff(关税)
    II. scarf(头巾), wharf(码头),staff(全体职员),handkerchief(手帕),hoof(蹄)既可直接加 “s”,又可变f为v加es.

(二). 不规则名词复数形式:
1. foot → feet    mouse → mice    goose → geese    child → children    ox → oxen  louse → lice    woman → women    man → men
2. 单复数同形:
   sheep, deer, fish, means, Chinese, Japanese, Swiss, works, barracks (兵营),bellows(风箱),kennels(狗窝)
3. 一些英语外来词的复数形式:
     crisis → crises   危机
     analysis → analyses   分析
     oasis → oases   绿洲
     parenthesis → parentheses   括号
     axis → axes   轴心
     ellipsis → ellipses   日蚀
     hypothesis → hypotheses   假定
     synopsis → synopses   内容提要
     erratum → errata   勘误误表
     addendum → addenda   补遗、附录
     medium → media   媒体
                           (以上单词熟悉即可)
(三). 复合名词复数形式:
1. 中间没有连字符的合成名词在词尾变复数:
    bookshelf → bookshelves    handful → handfuls
2. man 和 woman 构成的复合名词,二者均变为复数。
    man servant → men servants
    woman teacher → women teachers
3. 中间有连字符的合成词,在主体词(中心意义的词)末尾变复数:
    sister-in-law → sisters-in-law
    looker-on → lookers-on
    editor-in-chief → editors-in-chief
4. 下列合成名词后一个词上变化:
    sit-in → sit-ins,    grown-up → grown-ups
    stand-by → stand-bys   touch-me-not → touch-me-nots   go-between → go-betweens
(四). 名词所有格
1. 在大多数名词末加 “‘s”
   the boy’s toy, men’s work
2. 以s结尾的复数名词直接加 ‘
   the students’ reading room
3. 以s结尾的单数名词加‘
   Dickens’ novels     The actress’ performance
4. 合成名词在最后一个词上加 “s”
   her brother-in-law’s piano.
   Somebody else’s books. (重要!)

【金牌重点】:除用于有生命的人外,“‘s”格还可用于度量衡、地域、天体及一些习语中
   an hour’s drive,    a mile’s journey
   ten pounds’ weight.     Beijing’s weather
   the earth’s surface
   a stone’s throw   投石之距离
   at one’s wits end   智穷计尽
   to one’s heart’s content   尽情地
   by a hair’s breadth   千钧一发
   at a snail’s pace   缓慢地

5. 双重所有格:
   如果被修饰的名词前有不定冠词、不定代词、指示代词、疑问代词修饰。则要采用双重所有格。
    a friend of mine(名词性物主代词)
    a child of hers
    the love poems of your sister’s
注意区别:
    ●   a portrait of her mother 她母亲的画像(画中人)
    ●   a portrait of her mother’s 她母亲拥有的画像中的一幅(不一定是她母亲的画像)

测试精编:
1. Julie went to the _______ to buy a pair of shoes.
    A. shoes store        B. shoe’s store
    C. shoe store         D. shoes’ store
2. As a safety precaution, all city cab drivers carry only enough money to make change for a _______ bill.
    A. ten-dollar          B. ten-dollars
    C. tens-dollar         D. ten-dollar’s
3. Recently, he has lost all his _______ at cards.
    A. wage and saving        B. wages and saving
    B. wage and savings       D. wages and savings
4. I want _______.
    A. a dollar worth candy
    B. candy a dollar’s worth
    C. a dollar’s worth of candy
    D. a dollar worth’s candy
5. The surroundings a child grows up in usually _______ an effect on his development.
    A. have        B. had       C. do       D. has

第三章形容词、副词比较级和最高级
Comparative degree & Superlative degree
比较级构成方式:
A. adj/adv + er/est
   poor → poorer → poorest          fast → faster → fastest
B. 词尾e + r/st
   large → larger → largest           fine → finer → finest
C. 重读闭音节中短元音 + 辅音词尾 → 双写辅音词尾 + er/est。
   big → bigger → biggest           hot → hotter → hottest
D. 辅音 + y → I + er/est
   dry → drier → driest              angry → angrier → angriest
E. 多音节形容词及副词:
   more + adj/adv              most + adj/adv
F. 不规则变化:
   good/well → better → best         bad/ill → worse → worst
   many/much → more → most       little → less → least
   late → later → latest
   late → latter → last
   far → farther → farthest
   far → further → furthest
【用法示例】:
    比较级用于二者相比较,由than构成比较状语从句:
(1)
  Ø. He looks stronger than I (do).
  Ø. The climate of Shanghai is hotter than that of Beijing.
  Ø. My Schoolbag is larger than hers.
  Ø. The book is much more interesting than that one.
(2)
  Ø. It is getting colder and colder.
  Ø. She is becoming more and more beautiful.
笔记要点:两个形容词比较级由and 连在一起,表示“越来越……”
(3)
  Ø. The older we grow, the poorer our memory will be.
  Ø. The earlier we start, the sooner we’ll get there.
笔记要点:这种句型结构表示“越...... 越…… ”
(4)
  Ø. I prefer the cheaper one of the tow books.
  Ø. Of the two brothers, he is the cleverer.
笔记要点:二者之比较。而Of the three girls, she is the cleverest.
最高级构成方式:
三者或三者以上进行比较, “the + 形容词/副词est”。
(1) John is the tallest of the three.
   He runs fastest in our class.(副词的最高级the可省略)
   This is the most difficult book I’ve read.
(2) He is cleverer than any other boy in the class.(有than时只用比较级)
   She is younger than all the other students.
测试精编:
1. She is _______ than _______.
      A. busier/us          B. busier/we
      C. more busy/us       D. more busy/we
2. Jane is _______ than Betty.
      A. less taller          B. less tallest
      C. less tall            D. not as tall
3. John’s record was not so good as _______ in his team.
      A. all the players       B. any player’s
      C. other players        D. any other player’s
4. China is _______ country in the world.
      A. the third largest      B. the largest third
      C. the third large        D. a third largest
5. Shanghai has a larger population than _______ in china.
      A. any city       B. all the cities      C. any other city      D. all other cities
用所给词的比较级、最高级填空:
1. The window is _______ (narrow) of the two.
2. Where is the _______ (near) bus-stop?
3. He is one of _______ (famous) Politicians.
4. Do you have any _______ (far) questions to ask?
5. Tom drives much _______ (careful) than John.


第四章  被动语态
Passive Voice
1. 何时运用被动语态:
(1) 强调动作的接受者:America was discovered by Columbus.
(2) 不知谁是动作的执行者:You are wanted on the phone.
(3) 作客观说明:It is said that the meeting has been put off.(经典句型)
2. 主动变被动的基本语法:(说起来容易,掌握起来需要用心!)
   (1) 主动语态中的宾语变为被动语态的主语。
   (2) 谓语动词变为由 “be + 过去分词” 的形式,配合时态作相应变化。
   (3) 主动语态主语置于介词by之后,如无必需,则省略。
   (4) 不及物动词没有被动语态。
现在:do (does) → am/is/are + done
        We keep the piano in the living-room.
      →The piano is kept in the living-room.
过去:did → was/were + done
        They built the bridge in 1980.
      →The bridge was built in 1980.
将来:shall         shall
      will do →     will + be + done
        He will read the book tomorrow.
      →The book will be read tomorrow.
现在完成:have             have
         has done →   has + been + done
        We have delivered the newspaper.
      →The newspapers have been delivered (by us).
过去完成: had done → had been done
        She had seen the film before she came here.
      →The film had been seen before she came here.
将来完成: shall              shall
         will have done  →  will have + been + done
        By the end of this term we shall have finished 80 texts.
      →By the end of this term 80 texts will have been finished.
现在进行: am            am
          is doing →   is + being + done
          are           are
        They are drawing the picture.
      →The picture is being drawn by them.
过去进行: was doing → was + being + done
           were        were
        He was reviewing their lessons at this moment yesterday.
      →Their lessons were being reviewed at this moment yesterday.
情态动词      may            may
              can             can
              must            must
              should do →      should + be +done
              ought to          ought to
              used to           used to
You must write an article on the subject.
   →An article must be written on the subject.

测试精编
单项选择:
1. Since the first space mission, many communication satellites _______.
      A. was launched          B. are launched
      C. have been launched    D. had been launched
2. What kind of advice _______ you?
      A. has gave      B. was gave     C. had been given to      D. has given
3. The slave _______ from morning till night.
      A. made to work          B. was made working
      C. was made worked       D. was made to work
4. The construction of the laboratory _______ by the end of July.
      A. must be completing       B. must complete
      C. must have completed      D. must have been completed

5. Your proposal _______ by the committee soon.
      A. is discussed               B. has been discussed
      C. is going to be discussed      D. will have been discussed

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